代碼是在 SpringApplication.java 里的 deduceMainApplicationClass 函數(shù)來(lái)獲取到 MainApplication class 的罢防，
是通過(guò)遍歷 StackTrace 來(lái)查找到的只估，代碼如下
private Class<?> deduceMainApplicationClass() {
try {
StackTraceElement[] stackTrace = new RuntimeException().getStackTrace();
for (StackTraceElement stackTraceElement : stackTrace) {
if ("main".equals(stackTraceElement.getMethodName())) {
return Class.forName(stackTraceElement.getClassName());
}
}
}
catch (ClassNotFoundException ex) {
// Swallow and continue
}
return null;
}
